python/env_osx: use the most recently built folder

diff --git a/python/env_osx b/python/env_osx
index d15cc8a55bd9c40e9ff0869a3d0bf89758ec67e7..aa27f7e3c0a88299192516995526f011c5f984ea 100755 (executable)
--- a/python/env_osx
+++ b/python/env_osx
@@ -1,4 +1,4 @@
 #! /bin/sh
 
-export PYTHONPATH=$PWD/build/lib.*:$PWD/tests:$PYTHONPATH
+export PYTHONPATH=$PWD/`ls -rtd build/lib.* | head -1`:$PWD/tests:$PYTHONPATH
 export DYLD_LIBRARY_PATH=$PWD/../build/src